The number 34942
34942 is a composite number with 4 divisors. Its prime factorisation is 2 × 17471. Divisors (4): 1, 2, 17471, 34942.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 34942: a semiprime: 2 × 17471, the product of two primes.
- 2
34942 is composite. Its prime factorisation is
- 3
The divisors add up to 52416; without 34942 itself that is 17474, so 34942 is deficient (17474 is less than 34942). Euler's totient φ(34942) = 17470 numbers up to 34942 share no factor with it.
- 4
The digits of 34942 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 142 steps to reach 1.
LaTeX source of the formulas on this page
\[ 34942 = 2 \times 17471 \]
34942 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 52416 |
| Euler totient φ(n) | 17470 |
| Square | 1220943364 |
| Cube | 42662203024888 |
| Square root | 186.927794 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 142 |
| Scientific notation | 3.4942 × |
34942 in other forms
| Form | Value |
|---|---|
| In words | thirty-four thousand nine hundred and forty-two |
| Binary (base 2) | 1000100001111110 |
| Octal (base 8) | 104176 |
| Hexadecimal (base 16) | 887E |
| Base 3 | 1202221011 |
| As time | 34942 seconds = 9 h 42 min 22 s |
Is 34942 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (34942 ÷ 2 = 17471) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 1) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 5) | A number is divisible by 7 if double the last digit and subtract it from the rest: the result is a multiple of 7. |
| 8 | No (remainder 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 6) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 34942 a prime number?
No. 34942 = 2 × 17471, so it is divisible by 2.
What are the factors of 34942?
1, 2, 17471, 34942.
What is 34942 in binary?
1000100001111110 (hexadecimal 887E, octal 104176).
What is the square root of 34942?
About 186.9278.
Is 34942 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 34942?
34942 is a semiprime: 2 × 17471, the product of two primes.